It was narrated that 'Aishah, the wife of the Prophet, said: Three Sunan were established because of Barirah. One of those Sunan was that she was set free and was given the choice concerning her husband; the Messenger of Allah (ﷺ) said: 'Al Wala' is to the one who set the slave free;' and the Messenger of Allah (ﷺ) entered when some meat was being cooked in a pot, but bread and some condiments were brought to him. He said: 'Do I not see a pot in which some meat is being cooked?' They said: 'Yes, O Messenger of Allah, that is meat that was given in charity to Barirah and you do not eat (food given in) charity.' The Messenger of Allah (ﷺ) said: 'It is charity for her and a gift for us.'
Source: sunnah.com
Other translations
Arabic
أَخْبَرَنَا مُحَمَّدُ بْنُ سَلَمَةَ، قَالَ أَنْبَأَنَا ابْنُ الْقَاسِمِ، عَنْ مَالِكٍ، عَنْ رَبِيعَةَ، عَنِ الْقَاسِمِ بْنِ مُحَمَّدٍ، عَنْ عَائِشَةَ، زَوْجِ النَّبِيِّ صلى الله عليه وسلم قَالَتْ كَانَ فِي بَرِيرَةَ ثَلاَثُ سُنَنٍ إِحْدَى السُّنَنِ أَنَّهَا أُعْتِقَتْ فَخُيِّرَتْ فِي زَوْجِهَا وَقَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " الْوَلاَءُ لِمَنْ أَعْتَقَ " . وَدَخَلَ رَسُولُ اللَّهِ صلى الله عليه وسلم وَالْبُرْمَةُ تَفُورُ بِلَحْمٍ فَقُرِّبَ إِلَيْهِ خُبْزٌ وَأُدْمٌ مِنْ أُدْمِ الْبَيْتِ فَقَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " أَلَمْ أَرَ بُرْمَةً فِيهَا لَحْمٌ " . فَقَالُوا بَلَى يَا رَسُولَ اللَّهِ ذَلِكَ لَحْمٌ تُصُدِّقَ بِهِ عَلَى بَرِيرَةَ وَأَنْتَ لاَ تَأْكُلُ الصَّدَقَةَ . فَقَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " هُوَ عَلَيْهَا صَدَقَةٌ وَهُوَ لَنَا هَدِيَّةٌ " .
sunnah.com